It is common practice that personnel are referred to as LEVEL-#, not CLASS-#

with a pH value of 2.54 and a density of 1.09 g/ml

In my eyes, this is unnecessary information. That information can be considered trivial, and in a real-world organization, probably wouldn't be in the standard documentation, but in other, supplementary documentation given to those working on this item.

D-Class 4812

Again, common practice (At least in my experience) would be to have D-4812, not D-Class 4812

Dr. █████ has been reprimanded for misuse of foundation assets, access to SCP-XXXX is now limited to class 5 personnel

I doubt that one offense would result in an entire level of personell being denied access. In addition, there are very few level 5 personnel, and they are all admin personnel, not in active researcher roles.

Other than that, there could be a tightening up of clinical tone. Some words and formatting are unprofessional.

Overall, I liked it. I do feel that the "effects on personnel" is just an example of "anomalous for the sake of being anomalous" and not required.